Debt - Manufacturing Operations (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2014	Oct. 31, 2013
Debt Instrument [Line Items]
Debt, Current	$ 956	$ 1,163
Long-term Debt and Capital Lease Obligations	4,144	3,922
Manufacturing Operations [Member]
Debt Instrument [Line Items]
Long-term Debt, net	3,170	3,219
Debt, Current	267	658
Long-term Debt and Capital Lease Obligations	2,903	2,561
Manufacturing Operations [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt, net		693
Debt Instrument, Unamortized Discount	4	4
Manufacturing Operations [Member] \| Debt Of Majority Owned Dealerships [Member]
Debt Instrument [Line Items]
Long-term Debt, net		48
Manufacturing Operations [Member] \| Financing Arrangements and Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt, net	59	77
Manufacturing Operations [Member] \| Tax Exempt Bond [Member]
Debt Instrument [Line Items]
Long-term Debt, net		225
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Manufacturing Operations [Member] \| Promissory Note [Member]
Debt Instrument [Line Items]
Long-term Debt, net		20
Manufacturing Operations [Member] \| Financed lease obligations [Member]
Debt Instrument [Line Items]
Long-term Debt, net		218
Manufacturing Operations [Member] \| Other [Member]
Debt Instrument [Line Items]
Long-term Debt, net		39
Eight Point Two Five Percent Senior Notes [Member] \| Manufacturing Operations [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Long-term Debt, net		1,178
Debt Instrument, Unamortized Discount	21	22
Debt Instrument, Interest Rate, Stated Percentage	8.25%
Three Point Zero Percent Senior Subordinated Convertible Notes [Member] \| 2014 [Member] \| Manufacturing Operations [Member] \| Convertible Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, net		544
Debt Instrument, Unamortized Discount	4	26
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Four Point Five Zero Senior Subordinated Convertible Notes [Member] \| 2018 [Member] \| Manufacturing Operations [Member] \| Convertible Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, net		177
Debt Instrument, Unamortized Discount	21	23
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member] \| Manufacturing Operations [Member] \| Convertible Subordinated Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member] \| 2019 [Member] \| Manufacturing Operations [Member] \| Convertible Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, net		0
Debt Instrument, Unamortized Discount	$ 43
Debt Instrument, Interest Rate, Stated Percentage	4.75%

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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-Publisher FASB

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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